Explosion-proof electric cabinet structure

Abstract

The utility model discloses an explosion-proof electric cabinet structure which comprises a cabinet body and a heat dissipation unit. A sealing gasket is arranged at an opening in the front end of the cabinet body, a cabinet door is installed at the front end of the cabinet body through bolts, the cabinet door is located on the front side of the sealing gasket, and anti-explosion cable glands are arranged at threading holes in the lower end of the cabinet body; the heat dissipation unit comprises U-shaped pipes and middle pipes, the U-shaped pipes are uniformly arranged on the upper surface of the cabinet body, the middle pipes are uniformly arranged at round holes in the upper surface of the cabinet body, the upper ends of the middle pipes are communicated with the interiors of the vertically corresponding U-shaped pipes, the two ends of each U-shaped pipe are communicated with the interior of the cabinet body, and a control switch is arranged on the front side face of the cabinet door. According to the explosion-proof electric cabinet structure, air in the explosion-proof electric cabinet can flow circularly, heat exchange with external air can be carried out through the U-shaped pipe, the middle pipe and the cabinet body, and the explosion-proof electric cabinet has a good heat dissipation effect under the sealed condition.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof electric cabinets, in particular to an explosion-proof electric cabinet structure. Background Art

[0002] With the development of society and the advancement of technology, there are more and more electrical equipment in the workshop, and the voltage is also increasing. Once an electrical failure occurs, it may cause serious personal injury and property loss. As an important equipment to ensure the safety of personnel and equipment, the installation of explosion-proof electric cabinets in workshops has become more and more necessary. Explosion-proof electric cabinets are devices used to prevent natural explosions of electrical equipment or explosions caused by various factors. Explosion-proof electric cabinets also have dustproof and waterproof functions, which can effectively extend the service life of electrical equipment. Existing explosion-proof electric cabinets are generally sealed structures, which can effectively prevent the entry of air and dust. They have high structural strength and high safety in use, but they are closed structures themselves. They rely on heat exchange between the cabinet itself and the outside air to achieve their own heat dissipation, but the air flow inside the cabinet is poor, and the heat dissipation effect is poor. High temperature will affect the service life of the internal electrical appliances. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide an explosion-proof electric cabinet structure. The air inside the explosion-proof electric cabinet can circulate and exchange heat with the external air through the U-shaped tube, the middle tube and the cabinet body. The explosion-proof electric cabinet has a good heat dissipation effect under sealed conditions, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an explosion-proof electric cabinet structure, comprising a cabinet body and a heat dissipation unit;

[0005] Cabinet: A sealing gasket is provided at the opening at the front end of the cabinet. A cabinet door is installed at the front end of the cabinet through bolts. The cabinet door is located in front of the sealing gasket. The wire holes at the lower end of the cabinet are equipped with explosion-proof cable glands.

[0006] Heat dissipation unit: It includes a U-shaped tube and an intermediate tube. The U-shaped tube is evenly arranged on the upper surface of the cabinet, and the intermediate tube is evenly arranged at the circular hole on the upper surface of the cabinet. The upper end of the intermediate tube is connected to the interior of the vertically corresponding U-shaped tube, and both ends of the U-shaped tube are connected to the interior of the cabinet. During use, the fan can drive the air inside the explosion-proof electric cabinet to circulate, and the internal air can exchange heat with the external air through the U-shaped tube, the intermediate tube and the cabinet. The explosion-proof electric cabinet has a good heat dissipation effect under sealed conditions, which greatly improves the service life of the internal electrical appliances.

[0007] Furthermore, a control switch is provided on the front side of the cabinet door, and an input end of the control switch is electrically connected to an external power supply to facilitate control of the electrical appliance.

[0008] Furthermore, the heat dissipation unit also includes a guide shell and a fan. The guide shell is arranged on the upper side wall of the cabinet. The lower ends of the intermediate tubes are connected to the interior of the guide shell. A fan is provided at the lower end of the guide shell. The input end of the fan is electrically connected to the output end of the control switch to promote the circulation of air.

[0009] Furthermore, the heat dissipation unit also includes guide plates, which are respectively arranged on the left and right sides of the upper end of the cabinet to facilitate air diversion.

[0010] Furthermore, the guide plates are all arranged to be inclined from top to bottom in a direction away from the transverse center of the cabinet, so as to promote close contact between the air and the cabinet.

[0011] Furthermore, evenly distributed heat sinks are provided on the rear side of the cabinet to increase the heat dissipation surface area of ​​the cabinet.

[0012] Furthermore, evenly distributed annular sheets are provided on the outer arc surface of the U-shaped tube, and evenly distributed strip holes are opened on the left side surface of the annular sheets to increase the heat dissipation surface area of ​​the U-shaped tube.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the explosion-proof electric cabinet structure has the following advantages:

[0014] The control switch can be adjusted and the fan blows upward, so that the hot air inside the cabinet enters the middle tube through the guide shell, and then the airflow enters the U-shaped tube. The air in the external environment exchanges heat with the internal hot air through the U-shaped tube and the middle tube, thereby achieving internal cooling. The annular sheet increases the heat dissipation surface area of ​​the U-shaped tube, and then the airflow returns to the inside of the cabinet from both ends of the U-shaped tube. At the same time, the guide plate guides the incoming air, causing the air to flow along the side wall of the cabinet, and the external air exchanges heat with the internal air through the cabinet. The heat sink increases the heat dissipation surface area of ​​the cabinet. During use, the fan can drive the air inside the explosion-proof electric cabinet to circulate, and the internal air can exchange heat with the external air through the U-shaped tube, the middle tube and the cabinet. The explosion-proof electric cabinet has a good heat dissipation effect under sealed conditions, which greatly improves the service life of the internal electrical appliances. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the cabinet of the utility model.

[0017] In the figure: 1 cabinet body, 2 cabinet door, 3 explosion-proof cable gland, 4 heat dissipation unit, 41 U-shaped tube, 42 guide shell, 43 fan, 44 guide plate, 45 middle tube, 5 annular sheet, 6 strip hole, 7 sealing gasket, 8 heat sink, 9 control switch. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-2 ,This embodiment provides a technical solution: an explosion-proof electric cabinet structure, including a cabinet body 1 and a heat dissipation unit 4;

[0020] Cabinet 1: A sealing gasket 7 is provided at the opening of its front end, and the electrical appliance is installed inside the cabinet 1. A cabinet door 2 is installed at the front end of the cabinet 1 by bolts. The cabinet door 2 is located in front of the sealing gasket 7. The cabinet door 2 seals the front end of the cabinet 1 through the sealing gasket 7, and then the cabinet 1 will form a closed environment to prevent the explosion pressure and flame from spreading to the external environment when an explosion accident occurs inside, reduce the harm of the explosion accident to the surrounding environment and personnel, and thus have a good explosion-proof effect. Explosion-proof glands 3 are provided at the threading holes at the lower end of the cabinet 1. The connecting cable passes through the explosion-proof gland 3. After the cable passes through, the explosion-proof gland 3 is tightened. The elastic element inside the explosion-proof gland 3 squeezes and seals the cable to achieve sealing of the threading holes of the cabinet 1. A control switch 9 is provided on the front side of the cabinet door 2. The input end of the control switch 9 is electrically connected to an external power supply. The control switch 9 facilitates the control of the electrical appliance. Evenly distributed heat sinks 8 are provided on the rear side of the cabinet 1. The heat sink 8 increases the heat dissipation surface area of ​​the cabinet 1, and thus has a good heat dissipation effect.

[0021] The heat dissipation unit 4 includes a U-shaped tube 41 and an intermediate tube 45. The U-shaped tube 41 is evenly arranged on the upper surface of the cabinet 1. The intermediate tube 45 is evenly arranged at the circular hole on the upper surface of the cabinet 1. The upper end of the intermediate tube 45 is connected to the interior of the vertically corresponding U-shaped tube 41. Both ends of the U-shaped tube 41 are connected to the interior of the cabinet 1. The heat dissipation unit 4 also includes a guide shell 42 and a fan 43. The guide shell 42 is arranged on the upper side wall of the cabinet 1. The lower end of the intermediate tube 45 is connected to the interior of the guide shell 42. The lower end of the guide shell 42 is provided with a fan 43. The input end of the fan 43 is electrically connected to the output end of the control switch 9. The fan 43 blows upward when it works, so that the hot air inside the cabinet 1 enters the interior of the intermediate tube 45 through the guide shell 42, and then the airflow enters the interior of the U-shaped tube 41. The external circulation The air in the environment exchanges heat with the hot air inside through the U-shaped tube 41 and the middle tube 45, thereby achieving internal cooling. The heat dissipation unit 4 also includes a guide plate 44, which is respectively arranged on the left and right sides of the upper end of the cabinet 1. The airflow returns to the interior of the cabinet 1 from both ends of the U-shaped tube 41. At the same time, the guide plate 44 guides the incoming air. The guide plates 44 are all inclined from top to bottom in a direction away from the horizontal center of the cabinet 1, so that the air flows along the side wall of the cabinet 1. The external air exchanges heat with the internal air through the cabinet 1. The outer arc surface of the U-shaped tube 41 is provided with evenly distributed annular sheets 5, which increase the heat dissipation surface area of ​​the U-shaped tube 41. The left side surface of the annular sheet 5 is provided with evenly distributed strip holes 6, which facilitate the circulation of external airflow.

[0022] The working principle of an explosion-proof electric cabinet structure provided by the utility model is as follows: when in use, the electrical appliance is installed inside the cabinet 1, and then the connecting cable is passed through the explosion-proof gland 3. After the cable is passed through, the explosion-proof gland 3 is tightened, and the elastic element inside the explosion-proof gland 3 squeezes and seals the cable to achieve sealing of the threading hole of the cabinet 1. The cabinet door 2 seals the front end of the cabinet 1 through the sealing gasket 7, and then the cabinet 1 will form a closed environment to prevent the explosion pressure and flame from spreading to the external environment when an explosion accident occurs inside, thereby reducing the harm of the explosion accident to the surrounding environment and personnel, and thus having a good explosion-proof effect. In addition, the control switch 9 can be adjusted during use, and the wind The fan 43 blows air upward, and then the hot air inside the cabinet 1 enters the middle tube 45 through the guide shell 42, and then the airflow enters the U-shaped tube 41. The air in the external environment exchanges heat with the internal hot air through the U-shaped tube 41 and the middle tube 45, thereby achieving internal cooling. The annular sheet 5 increases the heat dissipation surface area of ​​the U-shaped tube 41, and then the airflow flows back to the interior of the cabinet 1 from both ends of the U-shaped tube 41. At the same time, the guide plate 44 guides the incoming air, causing the air to flow along the side wall of the cabinet 1. The external air exchanges heat with the internal air through the cabinet 1, and the heat sink 8 increases the heat dissipation surface area of ​​the cabinet 1, thereby achieving a good heat dissipation effect.

[0023] It is worth noting that the fan 43 disclosed in the above embodiment can be freely configured according to the actual application scenario. The fan 43 can use an explosion-proof fan of model UFT15PBPB23M1D4AN. The control switch 9 is provided with a switch button corresponding to the fan 43 for controlling its switching operation.

[0024] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An explosion-proof electric cabinet structure, characterized in that: It comprises a cabinet (1) and a heat dissipation unit (4); Cabinet (1): A sealing gasket (7) is provided at the opening of the front end thereof, a cabinet door (2) is installed at the front end of the cabinet (1) by means of bolts, the cabinet door (2) is located in front of the sealing gasket (7), and explosion-proof cable glands (3) are provided at the threading holes at the lower end of the cabinet (1); A heat dissipation unit (4): comprising a U-shaped tube (41) and an intermediate tube (45), wherein the U-shaped tube (41) is evenly arranged on the upper surface of the cabinet (1), and the intermediate tube (45) is evenly arranged at the circular hole on the upper surface of the cabinet (1), and the upper end of the intermediate tube (45) is connected to the interior of the vertically corresponding U-shaped tube (41), and both ends of the U-shaped tube (41) are connected to the interior of the cabinet (1).

2. The explosion-proof electric cabinet structure according to claim 1, characterized in that: A control switch (9) is provided on the front side of the cabinet door (2), and an input end of the control switch (9) is electrically connected to an external power supply.

3. The explosion-proof electric cabinet structure according to claim 2 is characterized in that: The heat dissipation unit (4) further comprises a flow guide shell (42) and a fan (43); the flow guide shell (42) is arranged on the upper side wall of the cabinet (1); the lower end of the intermediate tube (45) is communicated with the interior of the flow guide shell (42); the fan (43) is arranged at the lower end of the flow guide shell (42); the input end of the fan (43) is electrically connected to the output end of the control switch (9).

4. The explosion-proof electric cabinet structure according to claim 1, characterized in that: The heat dissipation unit (4) further comprises a guide plate (44), wherein the guide plate (44) is respectively arranged on the left and right sides of the upper end inside the cabinet (1).

5. The explosion-proof electric cabinet structure according to claim 4 is characterized in that: The guide plates (44) are all arranged to be inclined from top to bottom in a direction away from the transverse center of the cabinet (1).

6. The explosion-proof electric cabinet structure according to claim 1, characterized in that: Evenly distributed heat sinks (8) are provided on the rear side of the cabinet (1).

7. The explosion-proof electric cabinet structure according to claim 1, characterized in that: The outer arc surface of the U-shaped tube (41) is provided with evenly distributed annular plates (5), and the left side surfaces of the annular plates (5) are each provided with evenly distributed strip-shaped holes (6).

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